/**
	This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package br.biofoco.p2p.services;

import java.util.Map;

public class FatorialService extends AbstractService<Integer> {
	
	
	int fatorial(int n){
		if (n == 1 || n == 0)
			return 1;
		return n * fatorial(n-1);
	}

	@Override
	public ServiceResult<Integer> execute(long taskID, Map<String,String> params) throws ServiceException {
		Integer number =  Integer.parseInt(params.get("value"));
		int result = fatorial(number);
		return new ServiceResult<Integer>(taskID, result);
	}
}
